Muffler shell filling up method and the muffler shell which fills up the fiber material

摘要

Method in order to fill up the fiber material in the muffler shell is offered. This method the internal cavity (17) the part outside the muffler shell of one or more which is formed (14,16) with, has reached the point where it extends at least to the middle of the internal cavity, inside it possesses the open part of one or more which has reached the point where at the same time it communicates with the shell internal cavity the structure (18) with, it possesses the process which prepares the muffler shell which is included. This method, the fiber material (60) the bag which fills up (40a, 40b and 40c) furthermore has the process which is prepared. The bag, the 1st side section all the opening area (45a) the 1st hole of one or more which is decided (44a) there is no 1st side section and a hole which it has, or the 2nd hole of one or more which decides the 2nd side section all the opening area (44a) the 2nd side section which it has and, it possesses. The 1st opening area is larger than the 2nd opening area. This method has, in order for the 1st side section to be closest to the internal structure, adjoining the fiber material filling up bag to the internal structure, the process where process and pull the part vacuum in the internal structure process and the part vacuum which it positions draw the fiber filling up bag to inner split facing toward the internal structure and.